Productivity Enhancements Also Enabled by Improved SERDES Design Wizards, I/O Editors and Scripting Tools Along with Full Design Flow Support for Linux Open Source Operating System

ALISO VIEJO, Calif., Aug. 7, 2013 — (PRNewswire) — Microsemi Corporation (Nasdaq:
MSCC), a leading provider of semiconductor solutions differentiated by power, security, reliability and performance, today announced the release of its updated Libero System-on-Chip (SoC) version 11.4 comprehensive design software used for the development of the latest generation of Microsemi's FPGA products.

Microsemi's new Libero SoC v11.4 release improves design flow runtime by up to 35 percent for its award-winning SmartFusion2™ SoC FPGAs and IGLOO2™ FPGAs. The new release also offers greater design efficiency with an improved SmartDesign graphical design canvas along with improved text editor, design reporting and constraints editor capabilities. The improved SERDES wizards have new clocking options which allow for increased flexibility in mixing serial data rates. These new design efficiencies reduce design creation complexity for Microsemi's customers which results in a faster time-to-market for FPGA based designs.

Microsemi has seen tremendous adoption of its Libero SoC design software since introducing Libero SoC v11.0 for its SmartFusion2 and IGLOO2 FPGAs in 2013, and now has over 44,000 licenses granted year to date. This is being driven by the inherent value the market is seeing with Microsemi FPGAs which are positioned competitively in mainstream applications for communication, industrial, aerospace and defense.

A significant addition to the latest version of Libero SoC v11.4 software is full design flow support for the Linux open source operating system. The new easy-to-use FlashPro Express tool that comes bundled with the software enables device programming and debugging capabilities for the Linux operating system. These capabilities provide additional efficiencies for the system architects and designers by allowing them to stay in the same development environment throughout the entire design flow.

"Our overarching goal with the release of Libero SoC v11.4 design software is to create enhanced ease-of-use and design efficiency with improvements in various design wizards, editors and scripting engines, as well as vastly improved reliability of run times. These significant improvements help our customers get their FPGA-based solutions to market faster," said Shakeel Peera, senior director of product line marketing at Microsemi. "We also want to leverage the large and ever increasing corporate Linux operating system installed base and give our customers the ability to run an entire design exclusively through a comprehensive Linux design flow."

About IGLOO2 FPGAs
Microsemi's IGLOO2 FPGAs continue the company's focus on addressing the needs of today's cost-optimized FPGA market by providing a LUT-based fabric, 5G transceiver, high speed GPIO, block RAM, high-performance memory subsystem, and DSP blocks in a differentiated, cost and power optimized architecture. This next generation IGLOO2 architecture offers up to five times more logic density and three times more fabric performance than its predecessors and combines a non-volatile Flash-based fabric with the highest number of general purpose I/O, 5G SERDES interfaces and PCIe end points when compared to other products in its class. IGLOO2 FPGAs offer best-in-class feature integration coupled with the lowest power, highest reliability and most advanced security in the industry. For more information visit:
http://www.microsemi.com/products/fpga-soc/fpga/igloo2-fpga.

About Microsemi
Microsemi Corporation (Nasdaq:
MSCC) offers a comprehensive portfolio of semiconductor and system solutions for communications, defense & security, aerospace and industrial markets. Products include high-performance and radiation-hardened analog mixed-signal integrated circuits, FPGAs, SoCs and ASICs; power management products; timing and synchronization devices and precise time solutions, setting the world's standard for time; voice processing devices; RF solutions; discrete components; security technologies and scalable anti-tamper products; Power-over-Ethernet ICs and midspans; as well as custom design capabilities and services. Microsemi is headquartered in Aliso Viejo, Calif., and has approximately 3,400 employees globally. Learn more at
www.microsemi.com.

Microsemi and the Microsemi logo are registered trademarks or service marks of Microsemi Corporation and/or its affiliates. Third-party trademarks and service marks mentioned herein are the property of their respective owners.

"Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1995: Any statements set forth in this news release that are not entirely historical and factual in nature, including without limitation statements related to updated Libero System-on-Chip (SoC) version 11.4 comprehensive design software used for the development of the latest generation of Microsemi's FPGA products, and its potential effects on future business, are forward-looking statements. These forward-looking statements are based on our current expectations and are inherently subject to risks and uncertainties that could cause actual results to differ materially from those expressed in the forward-looking statements. The potential risks and uncertainties include, but are not limited to, such factors as rapidly changing technology and product obsolescence, potential cost increases, variations in customer order preferences, weakness or competitive pricing environment of the marketplace, uncertain demand for and acceptance of the company's products, adverse circumstances in any of our end markets, results of in-process or planned development or marketing and promotional campaigns, difficulties foreseeing future demand, potential non-realization of expected orders or non-realization of backlog, product returns, product liability, and other potential unexpected business and economic conditions or adverse changes in current or expected industry conditions, difficulties and costs of protecting patents and other proprietary rights, inventory obsolescence and difficulties regarding customer qualification of products. In addition to these factors and any other factors mentioned elsewhere in this news release, the reader should refer as well to the factors, uncertainties or risks identified in the company's most recent Form 10-K and all subsequent Form 10-Q reports filed by Microsemi with the SEC. Additional risk factors may be identified from time to time in Microsemi's future filings. The forward-looking statements included in this release speak only as of the date hereof, and Microsemi does not undertake any obligation to update these forward-looking statements to reflect subsequent events or circumstances.